Article Photos: THE RACE: Dynamics of presidential contest shifted



Republican Presidential candidate, former Massachusetts Gov. Mitt Romney, on stage,waves during a campaign event at Van Dyck Park, Thursday, Sept. 13, 2012, in Fairfax, Va. (AP Photo/Pablo Martinez Monsivais)

Republican Presidential candidate, former Massachusetts Gov. Mitt Romney, on stage,waves during a campaign event at Van Dyck Park, Thursday, Sept. 13, 2012, in Fairfax, Va. (AP Photo/Pablo Martinez Monsivais)